应力解除法在软土地区纠偏中的应用

STRESS RELIEVING METHOD APPLIED TO SLANT RECTIFYING IN SOFT SOIL REGION

应力解除法不同于一般的掏土纠偏法 ,它是在沉降较小一侧布置应力解除孔排 ,从中取土并辅以其他促沉措施 ,解除局部范围内的地基应力。为获得良好的纠偏效果 ,该法须在基础整体性及上部结构刚度良好的前提下进行 ,且设计、施工中均应遵循一定要求 。

Differed from common method of slant rectifying by soil picking-out,stress relieving method is performed through drilling a row of stress relieving holes and then picking out soil in the holes together with other settlement promoting measures so as to relieve foundation stress within the relevant area.In order to achieve expected effect of slant rectifying,this method could not be used except the foundation has good integrity and the superstructure has sufficient rigidity.Furthermore,certain design and construction requirement shall be followed.Continuous monitoring and observation in every stage is of considerable importance.